[time-nuts] femtosecond jitter
bruce.griffiths at xtra.co.nz
Fri Apr 13 22:06:30 EDT 2018
Thus a DDMTD using NB7V52's as the mixers should have useful performance
> On 14 April 2018 at 03:54 John Larkin <jjlarkin at highlandtechnology.com> wrote:
> If you walk the differential data and clock inputs of an NB7V52 CML
> flipflop across one another in time, the equivalent jitter is below 20
> fs RMS. That's what we're measuring, but our test rig may well dominate
> the jitter, so the flop is probably better.
> We're using this to test the jitter of some of our timing products, with
> 1/10 the noise floor and 1e-4 times the cost of other ways to do it.
> ********************************** arb
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> Highland Technology, Inc
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